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Widgets: don't show a dropdown if there is only 1 taxonomy or zero taxonomies available to the Tag Cloud widget form. Don't output the widget if there are no terms in the selected taxonomy.

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Props GautamGupta, wonderboymusic.
Fixes #16125.


git-svn-id: https://develop.svn.wordpress.org/trunk@34273 602fd350-edb4-49c9-b593-d223f7449a82
This commit is contained in:
Scott Taylor 2015-09-17 22:10:46 +00:00
parent 2a4eba2eb8
commit bec1944e44
1 changed files with 67 additions and 25 deletions
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92
src/wp-includes/widgets/class-wp-widget-tag-cloud.php
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@ -30,15 +30,6 @@ class WP_Widget_Tag_Cloud extends WP_Widget {
}
}
/** This filter is documented in wp-includes/widgets/class-wp-widget-pages.php */
$title = apply_filters( 'widget_title', $title, $instance, $this->id_base );
echo $args['before_widget'];
if ( $title ) {
echo $args['before_title'] . $title . $args['after_title'];
}
echo '<div class="tagcloud">';
/**
* Filter the taxonomy used in the Tag Cloud widget.
*
@ -49,10 +40,27 @@ class WP_Widget_Tag_Cloud extends WP_Widget {
*
* @param array $current_taxonomy The taxonomy to use in the tag cloud. Default 'tags'.
*/
wp_tag_cloud( apply_filters( 'widget_tag_cloud_args', array(
'taxonomy' => $current_taxonomy
$tag_cloud = wp_tag_cloud( apply_filters( 'widget_tag_cloud_args', array(
'taxonomy' => $current_taxonomy,
'echo' => false
) ) );
if ( empty( $tag_cloud ) ) {
return;
}
/** This filter is documented in wp-includes/widgets/class-wp-widget-pages.php */
$title = apply_filters( 'widget_title', $title, $instance, $this->id_base );
echo $args['before_widget'];
if ( $title ) {
echo $args['before_title'] . $title . $args['after_title'];
}
echo '<div class="tagcloud">';
echo $tag_cloud;
echo "</div>\n";
echo $args['after_widget'];
}
@ -74,20 +82,54 @@ class WP_Widget_Tag_Cloud extends WP_Widget {
*/
public function form( $instance ) {
$current_taxonomy = $this->_get_current_taxonomy($instance);
$title = isset( $instance['title'] ) ? $instance['title'] : '';
?>
<p><label for="<?php echo $this->get_field_id('title'); ?>"><?php _e('Title:') ?></label>
<input type="text" class="widefat" id="<?php echo $this->get_field_id('title'); ?>" name="<?php echo $this->get_field_name('title'); ?>" value="<?php echo esc_attr( $title ); ?>" /></p>
<p><label for="<?php echo $this->get_field_id('taxonomy'); ?>"><?php _e('Taxonomy:') ?></label>
<select class="widefat" id="<?php echo $this->get_field_id('taxonomy'); ?>" name="<?php echo $this->get_field_name('taxonomy'); ?>">
<?php foreach ( get_taxonomies() as $taxonomy ) :
$tax = get_taxonomy($taxonomy);
if ( !$tax->show_tagcloud || empty($tax->labels->name) )
continue;
?>
<option value="<?php echo esc_attr($taxonomy) ?>" <?php selected($taxonomy, $current_taxonomy) ?>><?php echo esc_attr( $tax->labels->name ); ?></option>
<?php endforeach; ?>
</select></p><?php
$title_id = $this->get_field_id( 'title' );
$instance['title'] = ! empty( $instance['title'] ) ? esc_attr( $instance['title'] ) : '';
echo '<p><label for="' . $title_id .'">' . __( 'Title:' ) . '</label>
<input type="text" class="widefat" id="' . $title_id .'" name="' . $this->get_field_name( 'title' ) .'" value="' . $instance['title'] .'" />
</p>';
$taxonomies = get_taxonomies( array( 'show_tagcloud' => true ), 'object' );
$id = $this->get_field_id( 'taxonomy' );
$name = $this->get_field_name( 'taxonomy' );
$input = '<input type="hidden" id="' . $id . '" name="' . $name . '" value="%s" />';
switch ( count( $taxonomies ) ) {
// No tag cloud supporting taxonomies found, display error message
case 0:
echo '<p>' . __( 'The tag cloud will not be displayed since their are no taxonomies that support the tag cloud widget.' ) . '</p>';
printf( $input, '' );
break;
// Just a single tag cloud supporting taxonomy found, no need to display options
case 1:
$keys = array_keys( $taxonomies );
$taxonomy = reset( $keys );
printf( $input, esc_attr( $taxonomy ) );
break;
// More than one tag cloud supporting taxonomy found, display options
default:
printf(
'<p><label for="%1$s">%2$s</label>' .
'<select class="widefat" id="%1$s" name="%3$s">',
$id,
__( 'Taxonomy:' ),
$name
);
foreach ( $taxonomies as $taxonomy => $tax ) {
printf(
'<option value="%s"%s>%s</option>',
esc_attr( $taxonomy ),
selected( $taxonomy, $current_taxonomy, false ),
$tax->labels->name
);
}
echo '</select></p>';
}
}
/**